@mickeyj4j You’re looking at the wrong one is your issue. Like you said, look at the assets on that. You chose one that was for iOS only.
I believe it has been confirmed that https://github.com/brave/brave-browser/releases/tag/v1.69.168 is correct. You can see where I shared to someone else and they said installed and worked in topic at Trying to download Brave Browser on an older Mac than can only run Catalina 10 - #2 by Saoiray